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The breathing system is used by the body to get the oxygen

needed for respiration.

عملية تبادلهوالتنفس و الجو المحيط به الكائن الحي للغازات بين

عملية يتم فيها ايصال االكسجين إلى وهيخاليا الجسم لالستفادة منه، و التخلص

من ثاني اكسيد الكربون . الجسم خارج الىبطرده

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Key wordsobjectives

Cellular Respiration

Aerobic respiration

An aerobic respiration

*Know the definition of

cellular respiration.

•Give the word and formula

equations for aerobic

respiration.

•Mention two types of

cellular respiration.

التنفس الخلويCellular Respiration

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The blood carries oxygen and glucose to all the body’s cells so that respiration happen.

جزء أي فيتحدث بالخلية

عملية التنفس؟؟؟

Mitochondrion

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Glucose + oxygen carbon dioxide + water + energy

C6 H12 O6 + 6 O2 6 CO 2 + 6 H 2O + 673 K

The Equations

Cellular Respiration :

is the breakdown of glucose to make energy using oxygen .

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We have two types of respiration

Aerobic respirationالهوائـــــــــي التنفس

االكسجين وجود في

An aerobic respiration الالهوائــــــي التنفس

االكسجين وجود عدم في

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When the body is able to supply the cells with the oxygen and glucose that they need, it carries out aerobicaerobic respiration.

Anaerobic respirationWhen the body cannot supply the cells with the oxygen needed to break down glucose, then it has to carry out anaerobic anaerobic respiration. Energy is released without oxygen:

Aerobic and anaerobic respiration

Aerobic respiration

carbondioxideglucose oxygen water energy

lacticacid energyglucose

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Key wordsobjectives

1-Aerobic

respiration

2-oxygen

3-temperature

*Know that the rate of

respiration is affected by

temperature & oxygen

concentration

Factors affecting of cellular respiration

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Oxygen األكسجين

و هوائيا تنفسا النباتات تتنفس

المحيط بالجو األكسجين نقص

النباتات ثأثيرات يكون بهذه له

باختالف الضرر مدى ويختلف ضارة

ومدة وعمره النسيج أو النبات نوع

الالهوائية الظروف لهذه التعرض

Factors affecting cellular respiration

الحرارة درجة

Temperature

األكسجينOxygen

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Temperature الحرارة

سرعة من تزيد الحرارة درجة زيادة

لمدة التأثير هذا يظل و التنفس عملية

النبات يتعرض بعدها فقط معينة

غاز تركيز فيزداد ضارة عكسية لتأثيرات

النبات في الكربون اكسيد ثانيفإنه المنخفضة الحرارة درجات عند اما

تركيز يزداد ان المتوقع الناتج CO2 منإبطاء الى يؤدي ما وهو التنفس من

التفاعالت

على المؤثرة األخرى العوامــل عن بحثالخلوي التنفس

Search

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What does the plant did?

make their own food!

Green plants are the only living

organisms that are able to do this.

What is the name of the process by which plants make their own food?

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الضوئي البناءPhotosynthesis

الجديدة الكلماتKey words

األهدافobjectives

•Photosynthesis •Chlorophyll •Biomass

1 -Know the definition of photosynthesis.

2 -How to write the photosynthesis equation.

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Structure of a leaf

How are leaves designed to maximise photosynthesis?

Leaves have holes, called stomata, on their underside through which gases move in and out.

Leaves have lots of veins to carry water to the cells and carry

glucose away.

Leaves are wide and flatto create a large surface area and absorb as much

light as possible.

Leaves are thin so gases

can reach cells easily.

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carbondioxide

water

oxygen

light energy

chlorophyll

glucose

Photosynthesis where it happens?

Green Plants use light energy from the Sun to power photosynthesis.

Photosynthesis takes place in chloroplasts.

Chloroplasts contain chlorophyll.

Chlorophyll absorbs the energy from sunlight that allows carbon dioxide and water to react.

Where in the leaf does this reaction take place?

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Photosynthesis

Is a process in which green plants use sun energy and chlorophyll to make its own food.

تقوم التي العملية الخضراء النباتاتها بهيالشمسية باستخدام الكلوروفيل الطاقة ومادة

بنفسه . غذائه النبات يصنع حتى

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Word equation to chemical equation

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Photosynthesis and respiration

glucose

light energy

chlorophyll

carbondioxide water oxygen

Compare the reactants, products &energy results of these two chemical reactions?

carbondioxideglucose oxygen water

Photosynthesis

Respiration (energy needed)

(energy released)

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Photosynthesis multiple-choice quiz

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Investigating photosynthesis - apparatus

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Investigating photosynthesis - experiment

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How do plants grow?

Plant cells in the upper surface of leaves have chloroplasts which contain the green pigment called chlorophyll.

oxygen

glucosecarbon dioxide

(from the air)

water (from the soil)

light energy

It is chlorophyll that absorbs light energy from the Sun to make photosynthesis happen.

chlorophyll